Determination of effective temperatures of the accretion disks in symbiotic stars |
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| Authors: | G A Gurzadyan |
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| Institution: | (1) Polytechnic Institute, Erevan, Armenian SSR, U.S.S.R. |
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| Abstract: | The conditions of the excitation of ultraviolet emission lines in symbiotic stars-triple systems with white dwarf and nebular clouds are examined. A new method is suggested for the determination of effective temperatureT
* of the accretion disk around of white dwarf, which is based on the balance between the summary intensitiesE
e
= E
i
of ultraviolet emission lines, escaped by nebular cloud, and a definite part of the energy of black-body radiation of accretion disk in the region shorter from the some wavelength
0. This condition brings us to the formula (9) which is used for the determination of the temperatureT
* and radiusr
n
of nebular cloud around the symbiotic system. It is shown that practically in all cases
0=180 Å=const. The results of the application of this method in relation to the five symbiotic triple-star systems are presented in Tables III and IV. |
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| Keywords: | |
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